Engine-assist device and industrial machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9593467
APP PUB NO 20160002889A1
SERIAL NO

14764140

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An inexpensive engine assist device capable of performing stable energy regeneration from an accumulator and a working machine on which the engine assist device is mounted are provided. A variable capacity type main pump and a variable capacity type assist pump are directly connected to an engine. A return pressure oil flowing out from a fluid pressure actuator is temporarily accumulated by a sub-accumulator and is supplied to an inlet of the assist pump, and the assist pump pressurizes the return fluid pressure oil and supplies the return fluid pressure oil to a main accumulator. A controller calculates and controls an assist pump swash plate angle, and assist starting torque or charge starting torque, and introduces a pressure-accumulated fluid discharged from the main accumulator to the inlet of the assist pump or introduces a pressurized fluid discharged from an outlet of the assist pump into the main accumulator.

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Patent Owner(s)

Patent OwnerAddress
CATERPILLAR SARL1208 GENEVA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kajita, Shigeo Tokyo, JP 8 128
Kanenawa, Yuya Tokyo, JP 11 52
Kishida, Kouji Tokyo, JP 12 156
Matoba, Nobuaki Tokyo, JP 14 174
Tada, Shogo Tokyo, JP 10 51
Yoshino, Tetsuya Tokyo, JP 40 355

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